======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '168'
                                          'artist'  'Total Energy'
                                     'text_people'  ''
                                         'release'  'Tape No184 - Free Your Mind'
                                           'title'  'Free Your Mind'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['psychedelic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '146.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.gr/'
'TALB' (Album/Movie/Show title)                     'Tape No184 - Free Your Mind'
'TBPM' (BPM (beats per minute))                     '146.0'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Free Your Mind'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Total Energy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'US'
'TXXX:discogstags'                                  ['psychedelic rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+23.00 dB'
'TXXX:replaygain_track_peak'                        '0.042972'
'TXXX:tracknum'                                     '10'

========================== row from database ==========================
                                              'id'  503604
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT184/10 - Total Energy  - Free Your Mind (196 US) (Temco).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  168
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4102365
                                           'mtime'  1620385070
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT184 10 (196 US) (Temco) rock gr garage;set pl garagetapes
                                      'tag_artist'  Total Energy
                                     'tag_release'  Tape No184 - Free Your Mind
                                       'tag_title'  Free Your Mind
                                             'bpm'  146.0
                                    'search_title'  'free':1 'mind':3 'your':2
                                   'search_artist'  'energy':2 'total':1
                                  'search_release'  'free':3 'mind':5 'no184':2 'tape':1 'your':4
                                     'search_rest'  '196':6,7 'blogspot':2 'com':3 'garage':14,16 'garagetapes':1,19 'garagetapesblogspotcom':4 'gr':13 'gt184':5 'pl':18 'rock':12 'set':15,17 'temco':10,11 'us':8,9
                                    'search_combo'  '196':16,17 'blogspot':12 'com':13 'energy':5B 'free':1A,8C 'garage':24,26 'garagetapes':11,29 'garagetapesblogspotcom':14 'gr':23 'gt184':15 'mind':3A,10C 'no184':7C 'pl':28 'rock':22 'set':25,27 'tape':6C 'temco':20,21 'total':4B 'us':18,19 'your':2A,9C
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1965
                                     'discogstags'  ['psychedelic rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620385069.5730872  (2021-05-07 12:57:49)
                             'size'  4102365